Analysis

  • max time kernel
    120s
  • max time network
    126s
  • platform
    windows7_x64
  • resource
    win7-en-20211208
  • submitted
    15-02-2022 13:49

General

  • Target

    4634c70711270fa33ac44c43db967cc85b7e273aa47eabd07eaf7f215c89af83.exe

  • Size

    6.0MB

  • MD5

    910713f54a0416c342cc46bbed1c53e3

  • SHA1

    4363b9485c120676e5151974a4f682460a99d9d9

  • SHA256

    4634c70711270fa33ac44c43db967cc85b7e273aa47eabd07eaf7f215c89af83

  • SHA512

    7e67cf773c0cd4afeae39b9a75e688d8c95f233fa8b0a40c1b07a786e4a108811e3a44acfb4b75a25ceae3dd2f15236b0c09ea272ea5621e1ddd8274ab2ccb50

Malware Config

Signatures

  • Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs
  • Blocklisted process makes network request 4 IoCs
  • Executes dropped EXE 3 IoCs
  • Checks BIOS information in registry 2 TTPs 6 IoCs

    BIOS information is often read in order to detect sandboxing environments.

  • Drops startup file 1 IoCs
  • Loads dropped DLL 9 IoCs
  • Themida packer 22 IoCs

    Detects Themida, an advanced Windows software protection system.

  • Checks whether UAC is enabled 1 TTPs 3 IoCs
  • Legitimate hosting services abused for malware hosting/C2 1 TTPs
  • Looks up external IP address via web service 1 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Suspicious use of NtSetInformationThreadHideFromDebugger 3 IoCs
  • Drops file in Program Files directory 3 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • Checks processor information in registry 2 TTPs 2 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 1 IoCs
  • Suspicious use of WriteProcessMemory 28 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\4634c70711270fa33ac44c43db967cc85b7e273aa47eabd07eaf7f215c89af83.exe
    "C:\Users\Admin\AppData\Local\Temp\4634c70711270fa33ac44c43db967cc85b7e273aa47eabd07eaf7f215c89af83.exe"
    1⤵
    • Loads dropped DLL
    • Drops file in Program Files directory
    • Suspicious use of WriteProcessMemory
    PID:1416
    • C:\Users\Admin\AppData\Local\Temp\droopt\before.exe
      "C:\Users\Admin\AppData\Local\Temp\droopt\before.exe"
      2⤵
      • Executes dropped EXE
      • Checks BIOS information in registry
      • Drops startup file
      • Loads dropped DLL
      • Checks whether UAC is enabled
      • Suspicious use of NtSetInformationThreadHideFromDebugger
      • Suspicious use of WriteProcessMemory
      PID:472
      • C:\Users\Admin\AppData\Roaming\Intel Rapid\IntelRapid.exe
        "C:\Users\Admin\AppData\Roaming\Intel Rapid\IntelRapid.exe"
        3⤵
        • Executes dropped EXE
        • Checks BIOS information in registry
        • Checks whether UAC is enabled
        • Suspicious use of NtSetInformationThreadHideFromDebugger
        • Suspicious behavior: AddClipboardFormatListener
        PID:1768
    • C:\Users\Admin\AppData\Local\Temp\droopt\cleoidvp.exe
      "C:\Users\Admin\AppData\Local\Temp\droopt\cleoidvp.exe"
      2⤵
      • Executes dropped EXE
      • Checks BIOS information in registry
      • Loads dropped DLL
      • Checks whether UAC is enabled
      • Suspicious use of NtSetInformationThreadHideFromDebugger
      • Checks processor information in registry
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:1116
      • C:\Windows\SysWOW64\WScript.exe
        "C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\klirwxb.vbs"
        3⤵
          PID:1008
        • C:\Windows\SysWOW64\WScript.exe
          "C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\gejcwdu.vbs"
          3⤵
          • Blocklisted process makes network request
          PID:796

    Network

    MITRE ATT&CK Matrix ATT&CK v6

    Defense Evasion

    Virtualization/Sandbox Evasion

    1
    T1497

    Discovery

    Query Registry

    3
    T1012

    Virtualization/Sandbox Evasion

    1
    T1497

    System Information Discovery

    4
    T1082

    Command and Control

    Web Service

    1
    T1102

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Temp\droopt\before.exe
      MD5

      a5f561f29f736a1f99ef726773628fa3

      SHA1

      acf172fa11ee345a6041784ef9f1021307f598dd

      SHA256

      333acbfe28976ee28514bb425c2c461026572d0003a7378fba366716e408d822

      SHA512

      ff75d12f607e407d190802be88f319cc6750f3898bc411199f3fd6976e24ed55296fed7ef562f97cbeb61cb1c0b3b635fba999c0780561c2f5a1b88d2b56160c

    • C:\Users\Admin\AppData\Local\Temp\droopt\before.exe
      MD5

      a5f561f29f736a1f99ef726773628fa3

      SHA1

      acf172fa11ee345a6041784ef9f1021307f598dd

      SHA256

      333acbfe28976ee28514bb425c2c461026572d0003a7378fba366716e408d822

      SHA512

      ff75d12f607e407d190802be88f319cc6750f3898bc411199f3fd6976e24ed55296fed7ef562f97cbeb61cb1c0b3b635fba999c0780561c2f5a1b88d2b56160c

    • C:\Users\Admin\AppData\Local\Temp\droopt\cleoidvp.exe
      MD5

      fda089a638a02b64c5175fbed3e4918b

      SHA1

      eef6c75a650b5d1f2f34b988fc88ceb328312c15

      SHA256

      f294a9d0f15513f519dfda080b37906851d8614d1211abc5f6141cd6ef6bfe7f

      SHA512

      7a9d15d37fa40898b49015f457546439a61ba7ba644b082d1c6bd0f10a6a7fded631937e255839beadf966c6577650f30601333bbb852a1a9625d1e561355c96

    • C:\Users\Admin\AppData\Local\Temp\droopt\cleoidvp.exe
      MD5

      fda089a638a02b64c5175fbed3e4918b

      SHA1

      eef6c75a650b5d1f2f34b988fc88ceb328312c15

      SHA256

      f294a9d0f15513f519dfda080b37906851d8614d1211abc5f6141cd6ef6bfe7f

      SHA512

      7a9d15d37fa40898b49015f457546439a61ba7ba644b082d1c6bd0f10a6a7fded631937e255839beadf966c6577650f30601333bbb852a1a9625d1e561355c96

    • C:\Users\Admin\AppData\Local\Temp\gejcwdu.vbs
      MD5

      f158fce0a1059566f9cf50a540941ef7

      SHA1

      dba71e72df35ce4d05217f6210543ba2a75e81bb

      SHA256

      1f0668b5752fce21df66ab4cb9d266355378ac34800ed80713baf534133fea6c

      SHA512

      bfc7b05beed455d19f03cd9383a9aacd5db1880ad538913819f7b24afc85d8ec2b0540cba4de4b21d9fa773ac0fccd40392ed276e916400775973e35a657afaf

    • C:\Users\Admin\AppData\Local\Temp\klirwxb.vbs
      MD5

      711bfb8e90eb2e0f714bc6b7c6902614

      SHA1

      6d969bd7d7917593a629bf589bc309083b1cbc07

      SHA256

      9ca9364d658b4a1482a3566683b902ff7697b3c2330da781b93f8bd2ac5b7be6

      SHA512

      1195ede637fe2f947d3c0e92665cfb10360ed188a119ea69a93b999705887792552a1ee59bfcea885a8e814458b559f616190ce03f350cc9b823f60ec0757f83

    • C:\Users\Admin\AppData\Roaming\Intel Rapid\IntelRapid.exe
      MD5

      a5f561f29f736a1f99ef726773628fa3

      SHA1

      acf172fa11ee345a6041784ef9f1021307f598dd

      SHA256

      333acbfe28976ee28514bb425c2c461026572d0003a7378fba366716e408d822

      SHA512

      ff75d12f607e407d190802be88f319cc6750f3898bc411199f3fd6976e24ed55296fed7ef562f97cbeb61cb1c0b3b635fba999c0780561c2f5a1b88d2b56160c

    • \Users\Admin\AppData\Local\Temp\droopt\before.exe
      MD5

      a5f561f29f736a1f99ef726773628fa3

      SHA1

      acf172fa11ee345a6041784ef9f1021307f598dd

      SHA256

      333acbfe28976ee28514bb425c2c461026572d0003a7378fba366716e408d822

      SHA512

      ff75d12f607e407d190802be88f319cc6750f3898bc411199f3fd6976e24ed55296fed7ef562f97cbeb61cb1c0b3b635fba999c0780561c2f5a1b88d2b56160c

    • \Users\Admin\AppData\Local\Temp\droopt\before.exe
      MD5

      a5f561f29f736a1f99ef726773628fa3

      SHA1

      acf172fa11ee345a6041784ef9f1021307f598dd

      SHA256

      333acbfe28976ee28514bb425c2c461026572d0003a7378fba366716e408d822

      SHA512

      ff75d12f607e407d190802be88f319cc6750f3898bc411199f3fd6976e24ed55296fed7ef562f97cbeb61cb1c0b3b635fba999c0780561c2f5a1b88d2b56160c

    • \Users\Admin\AppData\Local\Temp\droopt\cleoidvp.exe
      MD5

      fda089a638a02b64c5175fbed3e4918b

      SHA1

      eef6c75a650b5d1f2f34b988fc88ceb328312c15

      SHA256

      f294a9d0f15513f519dfda080b37906851d8614d1211abc5f6141cd6ef6bfe7f

      SHA512

      7a9d15d37fa40898b49015f457546439a61ba7ba644b082d1c6bd0f10a6a7fded631937e255839beadf966c6577650f30601333bbb852a1a9625d1e561355c96

    • \Users\Admin\AppData\Local\Temp\droopt\cleoidvp.exe
      MD5

      fda089a638a02b64c5175fbed3e4918b

      SHA1

      eef6c75a650b5d1f2f34b988fc88ceb328312c15

      SHA256

      f294a9d0f15513f519dfda080b37906851d8614d1211abc5f6141cd6ef6bfe7f

      SHA512

      7a9d15d37fa40898b49015f457546439a61ba7ba644b082d1c6bd0f10a6a7fded631937e255839beadf966c6577650f30601333bbb852a1a9625d1e561355c96

    • \Users\Admin\AppData\Local\Temp\droopt\cleoidvp.exe
      MD5

      fda089a638a02b64c5175fbed3e4918b

      SHA1

      eef6c75a650b5d1f2f34b988fc88ceb328312c15

      SHA256

      f294a9d0f15513f519dfda080b37906851d8614d1211abc5f6141cd6ef6bfe7f

      SHA512

      7a9d15d37fa40898b49015f457546439a61ba7ba644b082d1c6bd0f10a6a7fded631937e255839beadf966c6577650f30601333bbb852a1a9625d1e561355c96

    • \Users\Admin\AppData\Local\Temp\nstD72E.tmp\UAC.dll
      MD5

      adb29e6b186daa765dc750128649b63d

      SHA1

      160cbdc4cb0ac2c142d361df138c537aa7e708c9

      SHA256

      2f7f8fc05dc4fd0d5cda501b47e4433357e887bbfed7292c028d99c73b52dc08

      SHA512

      b28adcccf0c33660fecd6f95f28f11f793dc9988582187617b4c113fb4e6fdad4cf7694cd8c0300a477e63536456894d119741a940dda09b7df3ff0087a7eada

    • \Users\Admin\AppData\Roaming\Intel Rapid\IntelRapid.exe
      MD5

      a5f561f29f736a1f99ef726773628fa3

      SHA1

      acf172fa11ee345a6041784ef9f1021307f598dd

      SHA256

      333acbfe28976ee28514bb425c2c461026572d0003a7378fba366716e408d822

      SHA512

      ff75d12f607e407d190802be88f319cc6750f3898bc411199f3fd6976e24ed55296fed7ef562f97cbeb61cb1c0b3b635fba999c0780561c2f5a1b88d2b56160c

    • \Users\Admin\AppData\Roaming\Intel Rapid\IntelRapid.exe
      MD5

      a5f561f29f736a1f99ef726773628fa3

      SHA1

      acf172fa11ee345a6041784ef9f1021307f598dd

      SHA256

      333acbfe28976ee28514bb425c2c461026572d0003a7378fba366716e408d822

      SHA512

      ff75d12f607e407d190802be88f319cc6750f3898bc411199f3fd6976e24ed55296fed7ef562f97cbeb61cb1c0b3b635fba999c0780561c2f5a1b88d2b56160c

    • \Users\Admin\AppData\Roaming\Intel Rapid\IntelRapid.exe
      MD5

      a5f561f29f736a1f99ef726773628fa3

      SHA1

      acf172fa11ee345a6041784ef9f1021307f598dd

      SHA256

      333acbfe28976ee28514bb425c2c461026572d0003a7378fba366716e408d822

      SHA512

      ff75d12f607e407d190802be88f319cc6750f3898bc411199f3fd6976e24ed55296fed7ef562f97cbeb61cb1c0b3b635fba999c0780561c2f5a1b88d2b56160c

    • memory/472-68-0x0000000077CE0000-0x0000000077CE2000-memory.dmp
      Filesize

      8KB

    • memory/472-71-0x000000013F7C0000-0x00000001400D9000-memory.dmp
      Filesize

      9.1MB

    • memory/472-74-0x000007FEFC511000-0x000007FEFC513000-memory.dmp
      Filesize

      8KB

    • memory/472-66-0x000000013F7C0000-0x00000001400D9000-memory.dmp
      Filesize

      9.1MB

    • memory/472-65-0x000000013F7C0000-0x00000001400D9000-memory.dmp
      Filesize

      9.1MB

    • memory/1116-70-0x0000000001110000-0x00000000017D1000-memory.dmp
      Filesize

      6.8MB

    • memory/1116-73-0x0000000001110000-0x00000000017D1000-memory.dmp
      Filesize

      6.8MB

    • memory/1116-69-0x0000000077E80000-0x0000000077E82000-memory.dmp
      Filesize

      8KB

    • memory/1116-67-0x0000000001110000-0x00000000017D1000-memory.dmp
      Filesize

      6.8MB

    • memory/1416-54-0x0000000076071000-0x0000000076073000-memory.dmp
      Filesize

      8KB

    • memory/1768-81-0x000000013F5E0000-0x000000013FEF9000-memory.dmp
      Filesize

      9.1MB

    • memory/1768-80-0x000000013F5E0000-0x000000013FEF9000-memory.dmp
      Filesize

      9.1MB

    • memory/1768-79-0x000000013F5E0000-0x000000013FEF9000-memory.dmp
      Filesize

      9.1MB